143771-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143771-70-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,7,7 and 1 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143771-70:
(8*1)+(7*4)+(6*3)+(5*7)+(4*7)+(3*1)+(2*7)+(1*0)=134
134 % 10 = 4
So 143771-70-4 is a valid CAS Registry Number.
143771-70-4Relevant articles and documents
New tetrazole derivatives, process for their preparation and their use
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, (2008/06/13)
Tetrazole derivatives of the formula STR1 in which R1 denotes a saturated or unsaturated, straight-chain or branched (C1 -C6) alkyl radical and R2 denotes methyl or ethyl, and their pharmaceutically usable salts